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Sokkary A. A.: An unusual carbonate mineral from the schists of Wadi Um Kabu, South Eastern Desert, Egypt. In: Acta mineralogica-petrographica, (25) 2. pp. 197-201. (1982)
Sokkary A. A.: Mineralogy and chemistry of a pegmatitic feldspar from Hafafit, Egypt. In: Acta mineralogica-petrographica, (21) 2. pp. 277-281. (1974)